body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
  background: url("/img/bg.jpg") no-repeat center center;
}

a {
  color: #00B7FF;
}
/* 登录界面 */
.login_wrap,.register_wrap{
  width: 500px;
  height: 350px;
  background: rgba(255, 255, 255, 0.8);
  padding: 15px;
  margin: 9% auto;
  border-radius: 15px;
}
.login_title,.register_title{
  width: 500px;
  height: 100px;
  font-size: 27px;
  font-weight: bold;
  text-align: center;
  line-height: 100px;
}
.btn_login,.btn_register{
  margin-top: 20px;
  width: 100px;
  height: 40px;
  margin-left: 110px;
  font-weight: bold;
  background: black;

}
.login_register,.register_login{
  float: right;
  color: black;
}

/* 注册界面 */
.register_wrap{
 width: 550px;
 height: 420px;
}

